#6598AE
Closest named color: Cadet Blue (#5F9EA0). oklch(65.2% 0.063 227), rgb(101, 152, 174).
Aa
Black text reads best on this color (6.65:1).
About this color
#6598AE is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.063 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.032 away. Black text reads best on it, at 6.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #6598AE |
| RGB | rgb(101, 152, 174) |
| HSL | hsl(198, 31%, 54%) |
| OKLCH | oklch(65.2% 0.063 227) |
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 #6598AE | 3.15:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #6598AE | 6.65:1 | AA | Lc 45.5 | Large or bold text, headings |
| #6598AE text on white | 3.15:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #6598AE text on black | 6.65:1 | AA | Lc -43.2 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ADC5D0
oklch(80.9% 0.03 227.1)
-
Step 400
400
#80A7B9
oklch(70.6% 0.05 227.9)
-
Step 500
500 (this color)
#6598AE
oklch(65.2% 0.063 227)
-
Step 600
600
#447C93
oklch(55.7% 0.069 226.8)
-
Step 700
700
#35687D
oklch(49.1% 0.064 227.1)
-
Step 800
800
#2D5566
oklch(42.8% 0.053 227.6)
-
Step 900
900
#294653
oklch(37.7% 0.041 228.3)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#6598AE 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) | #8C96AF | 0.048 |
| Deuteranopia (no green cones) | #828DAE | 0.044 |
| Tritanopia (no blue cones) | #479F9F | 0.045 |
| Achromatopsia (no color) | #919191 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6598AE
#6598AE
oklch(65.2% 0.063 227)
- #B1846F
#B1846F
oklch(65.2% 0.064 46.1)
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 #6598AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.032
- Blue Grey #758DA3 ΔE 0.033
- Silver Lake Blue #778DA9 ΔE 0.034
- Greyblue #77A1B5 ΔE 0.035
- Faded Blue #658CBB ΔE 0.045
- Light Slate Gray #778899 ΔE 0.048
- Cool Gray #8D99AE ΔE 0.050
- Bluey Grey #89A0B0 ΔE 0.051
Use #6598AE 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.