#519CA5
Closest named color: Cadet Blue (#5F9EA0). oklch(64.8% 0.076 205.7), rgb(81, 156, 165).
Aa
Black text reads best on this color (6.64:1).
About this color
#519CA5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.076 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.017 away. Black text reads best on it, at 6.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.64:1 |
| White text | 3.15:1 |
Values
| HEX | #519CA5 |
| RGB | rgb(81, 156, 165) |
| HSL | hsl(186, 34%, 48%) |
| OKLCH | oklch(64.8% 0.076 205.7) |
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 #519CA5 | 3.15:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #519CA5 | 6.64:1 | AA | Lc 45.5 | Large or bold text, headings |
| #519CA5 text on white | 3.15:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #519CA5 text on black | 6.64:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A6C8CC
oklch(80.9% 0.037 205.2)
-
Step 400
400
#74ACB3
oklch(70.8% 0.059 205.8)
-
Step 500
500 (this color)
#519CA5
oklch(64.8% 0.076 205.7)
-
Step 600
600
#29818B
oklch(55.6% 0.082 206)
-
Step 700
700
#196D76
oklch(49.1% 0.077 205.8)
-
Step 800
800
#195960
oklch(42.8% 0.063 205.6)
-
Step 900
900
#1C494E
oklch(37.7% 0.049 205.2)
-
Step 950
950
#122B2E
oklch(27.1% 0.031 205.7)
#519CA5 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) | #9297A6 | 0.075 |
| Deuteranopia (no green cones) | #848DA5 | 0.068 |
| Tritanopia (no blue cones) | #1AA19F | 0.036 |
| Achromatopsia (no color) | #919191 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #519CA5
#519CA5
oklch(64.8% 0.076 205.7)
- #B87D77
#B87D77
oklch(64.8% 0.075 25.8)
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 #519CA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.017
- Sea #3C9992 ΔE 0.035
- Dull Teal #5F9E8F ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.040
- Persian Green #2A9D8F ΔE 0.046
- Greyblue #77A1B5 ΔE 0.050
- Dusty Teal #4C9085 ΔE 0.053
- Blue Grey #758DA3 ΔE 0.053
Use #519CA5 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.