#5997BB
Closest named color: Faded Blue (#658CBB). oklch(64.9% 0.084 235.5), rgb(89, 151, 187).
Aa
Black text reads best on this color (6.56:1).
About this color
#5997BB is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.084 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.032 away. Black text reads best on it, at 6.56:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.56:1 |
| White text | 3.19:1 |
Values
| HEX | #5997BB |
| RGB | rgb(89, 151, 187) |
| HSL | hsl(202, 42%, 54%) |
| OKLCH | oklch(64.9% 0.084 235.5) |
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 #5997BB | 3.19:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #5997BB | 6.56:1 | AA | Lc 45.0 | Large or bold text, headings |
| #5997BB text on white | 3.19:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #5997BB text on black | 6.56:1 | AA | Lc -42.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A8C5D8
oklch(80.8% 0.041 236.8)
-
Step 400
400
#78A8C4
oklch(70.8% 0.066 234.5)
-
Step 500
500 (this color)
#5997BB
oklch(64.9% 0.084 235.5)
-
Step 600
600
#367BA1
oklch(55.5% 0.091 235.8)
-
Step 700
700
#27688A
oklch(49.2% 0.085 235.2)
-
Step 800
800
#225570
oklch(42.8% 0.07 234.9)
-
Step 900
900
#22465B
oklch(37.7% 0.055 236.3)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#5997BB 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) | #8696BD | 0.052 |
| Deuteranopia (no green cones) | #798BBA | 0.046 |
| Tritanopia (no blue cones) | #1EA0A3 | 0.064 |
| Achromatopsia (no color) | #909090 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5997BB
#5997BB
oklch(64.9% 0.084 235.5)
- #B7815C
#B7815C
oklch(64.9% 0.084 55.1)
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 #5997BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.032
- Silver Lake Blue #778DA9 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.045
- Greyblue #77A1B5 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.052
- Off Blue #5684AE ΔE 0.054
- Cool Blue #4984B8 ΔE 0.059
Use #5997BB 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.