#64909F
Closest named color: Blue Grey (#758DA3). oklch(62.7% 0.053 221.2), rgb(100, 144, 159).
Aa
Black text reads best on this color (6.03:1).
About this color
#64909F is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.053 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.024 away. Black text reads best on it, at 6.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.03:1 |
| White text | 3.48:1 |
Values
| HEX | #64909F |
| RGB | rgb(100, 144, 159) |
| HSL | hsl(195, 24%, 51%) |
| OKLCH | oklch(62.7% 0.053 221.2) |
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 #64909F | 3.48:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #64909F | 6.03:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #64909F text on white | 3.48:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #64909F text on black | 6.03:1 | AA | Lc -39.4 | 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
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDBE0
oklch(88.4% 0.015 224.5)
-
Step 300
300
#AFC5CD
oklch(80.9% 0.026 221.6)
-
Step 400
400
#85A7B3
oklch(70.7% 0.041 221.4)
-
Step 500
500 (this color)
#64909F
oklch(62.7% 0.053 221.2)
-
Step 600
600
#4B7B8B
oklch(55.5% 0.058 221.2)
-
Step 700
700
#3C6876
oklch(49.1% 0.054 220.4)
-
Step 800
800
#325560
oklch(42.8% 0.044 220)
-
Step 900
900
#2C464F
oklch(37.7% 0.035 221.7)
-
Step 950
950
#1A292E
oklch(27% 0.022 220.6)
#64909F 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) | #878DA0 | 0.045 |
| Deuteranopia (no green cones) | #7E869F | 0.041 |
| Tritanopia (no blue cones) | #4E9595 | 0.033 |
| Achromatopsia (no color) | #898989 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64909F
#64909F
oklch(62.7% 0.053 221.2)
- #A57E70
#A57E70
oklch(62.7% 0.053 40.6)
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 #64909F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.024
- Light Slate Gray #778899 ΔE 0.029
- Silver Lake Blue #778DA9 ΔE 0.031
- Steel #738595 ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.040
- Steel Grey #6F828A ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.043
- Slate Gray #708090 ΔE 0.045
Use #64909F 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.