#649DC6
Closest named color: Greyblue (#77A1B5). oklch(67.3% 0.086 241), rgb(100, 157, 198).
Aa
Black text reads best on this color (7.18:1).
About this color
#649DC6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.086 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.037 away. Black text reads best on it, at 7.18:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.18:1 |
| White text | 2.92:1 |
Values
| HEX | #649DC6 |
| RGB | rgb(100, 157, 198) |
| HSL | hsl(205, 46%, 58%) |
| OKLCH | oklch(67.3% 0.086 241) |
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 #649DC6 | 2.92:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #649DC6 | 7.18:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #649DC6 text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #649DC6 text on black | 7.18:1 | AAA | Lc -46.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A3C6E0
oklch(81% 0.053 240.5)
-
Step 400
400 (this color)
#649DC6
oklch(67.3% 0.086 241)
-
Step 500
500
#4491C5
oklch(63.1% 0.109 241.1)
-
Step 600
600
#1D7BB2
oklch(55.7% 0.119 240.7)
-
Step 700
700
#0B6799
oklch(49.1% 0.111 240.9)
-
Step 800
800
#11547C
oklch(42.7% 0.091 241.2)
-
Step 900
900
#184664
oklch(37.8% 0.071 241.1)
-
Step 950
950
#10293A
oklch(27% 0.044 240.8)
#649DC6 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) | #8B9DC8 | 0.046 |
| Deuteranopia (no green cones) | #7E92C5 | 0.040 |
| Tritanopia (no blue cones) | #33A7AB | 0.069 |
| Achromatopsia (no color) | #979797 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649DC6
#649DC6
oklch(67.3% 0.086 241)
- #BD8A5F
#BD8A5F
oklch(67.3% 0.085 60.8)
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 #649DC6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.037
- Faded Blue #658CBB ΔE 0.047
- Bluegrey #85A3B2 ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.054
- Bluey Grey #89A0B0 ΔE 0.055
- Cool Gray #8D99AE ΔE 0.056
- Blue Grey #758DA3 ΔE 0.059
- Cadet Blue #5F9EA0 ΔE 0.060
Use #649DC6 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.