#5998AB
Closest named color: Cadet Blue (#5F9EA0). oklch(64.5% 0.071 219.3), rgb(89, 152, 171).
Aa
Black text reads best on this color (6.50:1).
About this color
#5998AB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.071 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.029 away. Black text reads best on it, at 6.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.50:1 |
| White text | 3.22:1 |
Values
| HEX | #5998AB |
| RGB | rgb(89, 152, 171) |
| HSL | hsl(194, 33%, 51%) |
| OKLCH | oklch(64.5% 0.071 219.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #5998AB | 3.22:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #5998AB | 6.50:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #5998AB text on white | 3.22:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #5998AB text on black | 6.50:1 | AA | Lc -42.3 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#A9C6D0
oklch(80.8% 0.034 220.6)
-
Step 400
400
#7AA9B8
oklch(70.7% 0.055 219.6)
-
Step 500
500 (this color)
#5998AB
oklch(64.5% 0.071 219.3)
-
Step 600
600
#377E92
oklch(55.6% 0.077 219.2)
-
Step 700
700
#286A7C
oklch(49% 0.071 219)
-
Step 800
800
#235765
oklch(42.8% 0.059 218.3)
-
Step 900
900
#224752
oklch(37.5% 0.046 219.6)
-
Step 950
950
#152A30
oklch(27% 0.029 218.2)
#5998AB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8C95AC | 0.060 |
| Deuteranopia (no green cones) | #808BAB | 0.055 |
| Tritanopia (no blue cones) | #2F9F9E | 0.045 |
| Achromatopsia (no color) | #8F8F8F | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5998AB
#5998AB
oklch(64.5% 0.071 219.3)
- #B47F6D
#B47F6D
oklch(64.5% 0.071 39.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #5998AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.029
- Blue Grey #758DA3 ΔE 0.040
- Silver Lake Blue #778DA9 ΔE 0.043
- Greyblue #77A1B5 ΔE 0.045
- Sea #3C9992 ΔE 0.049
- Faded Blue #658CBB ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.051
- Light Slate Gray #778899 ΔE 0.052
Use #5998AB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.