#57899E
Closest named color: Dusty Blue (#5A86AD). oklch(60.3% 0.062 226.5), rgb(87, 137, 158).
Aa
Black text reads best on this color (5.47:1).
About this color
#57899E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.062 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.028 away. Black text reads best on it, at 5.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.47:1 |
| White text | 3.83:1 |
Values
| HEX | #57899E |
| RGB | rgb(87, 137, 158) |
| HSL | hsl(198, 29%, 48%) |
| OKLCH | oklch(60.3% 0.062 226.5) |
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 #57899E | 3.83:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #57899E | 5.47:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #57899E text on white | 3.83:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #57899E text on black | 5.47:1 | AA | Lc -35.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
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
#81A7B8
oklch(70.6% 0.048 227.1)
-
Step 500
500 (this color)
#57899E
oklch(60.3% 0.062 226.5)
-
Step 600
600
#447C92
oklch(55.7% 0.068 225.6)
-
Step 700
700
#36687C
oklch(49.1% 0.063 226.3)
-
Step 800
800
#2D5565
oklch(42.7% 0.052 226.1)
-
Step 900
900
#294652
oklch(37.7% 0.04 226.3)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#57899E 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) | #7E879F | 0.048 |
| Deuteranopia (no green cones) | #737F9E | 0.042 |
| Tritanopia (no blue cones) | #388F90 | 0.042 |
| Achromatopsia (no color) | #828282 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57899E
#57899E
oklch(60.3% 0.062 226.5)
- #A17661
#A17661
oklch(60.3% 0.063 47.1)
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 #57899E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.028
- Off Blue #5684AE ΔE 0.033
- Steel #738595 ΔE 0.034
- Grey Blue #647D8E ΔE 0.037
- Slate Gray #708090 ΔE 0.037
- Light Slate Gray #778899 ΔE 0.038
- Steel Grey #6F828A ΔE 0.038
- Blue Grey #758DA3 ΔE 0.040
Use #57899E 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.