#51949D
Closest named color: Sea (#3C9992). oklch(62.6% 0.069 206.8), rgb(81, 148, 157).
Aa
Black text reads best on this color (6.07:1).
About this color
#51949D is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.069 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.031 away. Black text reads best on it, at 6.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.07:1 |
| White text | 3.45:1 |
Values
| HEX | #51949D |
| RGB | rgb(81, 148, 157) |
| HSL | hsl(187, 32%, 47%) |
| OKLCH | oklch(62.6% 0.069 206.8) |
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 #51949D | 3.45:1 | AA large text | Lc -67.5 | Content text, not long reading |
| Black text on #51949D | 6.07:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #51949D text on white | 3.45:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #51949D text on black | 6.07:1 | AA | Lc -39.7 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A8C7CC
oklch(80.8% 0.034 208.4)
-
Step 400
400
#78ABB2
oklch(70.8% 0.055 206.7)
-
Step 500
500 (this color)
#51949D
oklch(62.6% 0.069 206.8)
-
Step 600
600
#33808A
oklch(55.7% 0.076 207)
-
Step 700
700
#256C75
oklch(49.1% 0.07 207)
-
Step 800
800
#21585F
oklch(42.7% 0.058 206.8)
-
Step 900
900
#21484E
oklch(37.6% 0.045 208.6)
-
Step 950
950
#142A2D
oklch(26.8% 0.028 206.9)
#51949D 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) | #8A8F9E | 0.068 |
| Deuteranopia (no green cones) | #7E869D | 0.062 |
| Tritanopia (no blue cones) | #279997 | 0.034 |
| Achromatopsia (no color) | #8A8A8A | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51949D
#51949D
oklch(62.6% 0.069 206.8)
- #AE7871
#AE7871
oklch(62.6% 0.069 27.4)
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 #51949D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.031
- Cadet Blue #5F9EA0 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.037
- Teal Green #0A9396 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.042
- Dull Teal #5F9E8F ΔE 0.044
- Blue Grey #758DA3 ΔE 0.046
- Persian Green #2A9D8F ΔE 0.047
Use #51949D 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.