#004963
Closest named color: Dark Grey Blue (#29465B). oklch(38% 0.076 230.5), rgb(0, 73, 99).
Aa
White text reads best on this color (9.84:1).
About this color
#004963 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.028 away. White text reads best on it, at 9.84:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #004963 |
| RGB | rgb(0, 73, 99) |
| HSL | hsl(196, 100%, 19%) |
| OKLCH | oklch(38% 0.076 230.5) |
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 #004963 | 9.84:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #004963 | 2.13:1 | Fails | Lc 11.6 | Not readable |
| #004963 text on white | 9.84:1 | AAA | Lc 92.3 | Preferred for body text |
| #004963 text on black | 2.13:1 | Fails | Lc -10.1 | Not readable |
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 900.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C5DEEA
oklch(88.6% 0.031 228.2)
-
Step 300
300
#9BC8DF
oklch(80.9% 0.057 230.5)
-
Step 400
400
#60ABCF
oklch(70.7% 0.091 230.8)
-
Step 500
500
#2495C2
oklch(63% 0.116 230.6)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900 (this color)
#004963
oklch(38% 0.076 230.5)
-
Step 950
950
#062A39
oklch(26.8% 0.048 230.5)
#004963 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) | #3C4864 | 0.052 |
| Deuteranopia (no green cones) | #2F4063 | 0.042 |
| Tritanopia (no blue cones) | #005052 | 0.043 |
| Achromatopsia (no color) | #434343 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004963
#004963
oklch(38% 0.076 230.5)
- #623519
#623519
oklch(38% 0.076 50.5)
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 #004963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.028
- Charcoal #264653 ΔE 0.033
- Dark Teal #014D4E ΔE 0.043
- Deep Teal #00555A ΔE 0.047
- Twilight Blue #0A437A ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.051
- Midnight Green #073B4C ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.055
Use #004963 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.