#649CA5
Closest named color: Cadet Blue (#5F9EA0). oklch(65.7% 0.06 208.6), rgb(100, 156, 165).
Aa
Black text reads best on this color (6.84:1).
About this color
#649CA5 is a medium-light, muted teal or cyan. In OKLCH its lightness is 66%, its chroma 0.060 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.012 away. Black text reads best on it, at 6.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #649CA5 |
| RGB | rgb(100, 156, 165) |
| HSL | hsl(188, 27%, 52%) |
| OKLCH | oklch(65.7% 0.06 208.6) |
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 #649CA5 | 3.06:1 | AA large text | Lc -62.9 | Content text, not long reading |
| Black text on #649CA5 | 6.84:1 | AA | Lc 46.5 | Large or bold text, headings |
| #649CA5 text on white | 3.06:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #649CA5 text on black | 6.84:1 | AA | Lc -44.2 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ACC6CB
oklch(80.9% 0.029 210.5)
-
Step 400
400
#7EA9B0
oklch(70.6% 0.047 208.6)
-
Step 500
500 (this color)
#649CA5
oklch(65.7% 0.06 208.6)
-
Step 600
600
#407E88
oklch(55.6% 0.066 209.1)
-
Step 700
700
#326A73
oklch(49% 0.06 209.2)
-
Step 800
800
#2A575E
oklch(42.8% 0.051 208.7)
-
Step 900
900
#27474D
oklch(37.6% 0.039 210.9)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#649CA5 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) | #9398A6 | 0.058 |
| Deuteranopia (no green cones) | #8890A5 | 0.053 |
| Tritanopia (no blue cones) | #49A19F | 0.031 |
| Achromatopsia (no color) | #939393 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649CA5
#649CA5
oklch(65.7% 0.06 208.6)
- #B3847D
#B3847D
oklch(65.7% 0.059 28.4)
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 #649CA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.012
- Greyblue #77A1B5 ΔE 0.035
- Dull Teal #5F9E8F ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.042
- Blue Grey #758DA3 ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.049
- Bluegrey #85A3B2 ΔE 0.049
- Sea #3C9992 ΔE 0.049
Use #649CA5 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.