#00669D
Closest named color: Peacock Blue (#016795). oklch(49% 0.118 242.7), rgb(0, 102, 157).
Aa
White text reads best on this color (6.19:1).
About this color
#00669D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.118 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.014 away. White text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.38:1 |
| White text | 6.19:1 |
Values
| HEX | #00669D |
| RGB | rgb(0, 102, 157) |
| HSL | hsl(201, 100%, 31%) |
| OKLCH | oklch(49% 0.118 242.7) |
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 #00669D | 6.19:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #00669D | 3.38:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #00669D text on white | 6.19:1 | AA | Lc 80.3 | Fine for body text |
| #00669D text on black | 3.38:1 | AA large text | Lc -21.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A1C6E3
oklch(80.9% 0.057 242)
-
Step 400
400
#6CA7D5
oklch(70.6% 0.091 243.1)
-
Step 500
500
#4091CA
oklch(63.2% 0.116 242.5)
-
Step 600
600
#157AB7
oklch(55.6% 0.127 242.7)
-
Step 700
700 (this color)
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#0B5480
oklch(42.8% 0.098 242.7)
-
Step 900
900
#154566
oklch(37.5% 0.076 243)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#00669D 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) | #4B689F | 0.053 |
| Deuteranopia (no green cones) | #365B9C | 0.039 |
| Tritanopia (no blue cones) | #00747A | 0.080 |
| Achromatopsia (no color) | #616161 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00669D
#00669D
oklch(49% 0.118 242.7)
- #8C4F00
#8C4F00
oklch(48.9% 0.112 62.3)
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 #00669D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.014
- Ocean Blue #03719C ΔE 0.034
- Denim #3B638C ΔE 0.040
- Mid Blue #276AB3 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.045
- Sea Blue #047495 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.048
Use #00669D 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.